MATH / STATISTICAL INFERENCE
Estimate a paired population mean difference from summarized within-pair differences. Inspect the equation, substituted values, result, assumptions, and interpretation in one guided workspace.
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Estimate a paired population mean difference from summarized within-pair differences. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
d_bar +/- t_star s_d/sqrt(n)
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What you receive
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Pairs are independent of other pairs and the difference distribution supports the selected t procedure.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors